Gregory Powell, MD
NPI 1669834610 · Emergency Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Powell, MD is a Emergency Medicine Physician provider in Orange, CA (NPI 1669834610).
Provider details
- NPI number
- 1669834610
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
712 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 248 | $9 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 201 | $187 |
| Critical Care, First 30-74 Minutes99291 | 193 | $231 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 58 | $129 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 12 | $189 |
Typical Medicare-allowed amounts for these services range $9–$231 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 73 | 72 |
| Cephalexin | 59 | 58 |
| Famotidine | 58 | 57 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 55 | 54 |
| Naproxen | 27 | 27 |
| Cyclobenzaprine Hcl | 22 | 22 |
| Meclizine Hcl | 21 | 21 |
| Amlodipine Besylate |
Practice location
Mailing address
Additional practice locations (1)
- 1000 W Carson StTorrance, CA 90502-2004Phone: (310) 222-2345
Registry dates
- Enumerated
- 2016-03-28
- Last updated
- 2020-10-02
- Certified
- 2020-10-02
Frequently asked questions
- What is Gregory Powell's NPI number?
- Gregory Powell's National Provider Identifier (NPI) is 1669834610, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Powell's specialty?
- Gregory Powell is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Powell located?
- Gregory Powell's practice location on file with NPPES is 1310 W Stewart Dr Ste 212, Orange, CA 92868-3837.
- What is Gregory Powell's phone number?
- The practice phone number listed in the NPPES registry for Gregory Powell is (714) 543-8911.
- Does Gregory Powell accept Medicare?
- Gregory Powell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Powell's NPI active?
- Yes — Gregory Powell's NPI (1669834610) is active in the NPPES registry as of the last update on 2020-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.